Influence of Zr on AlSi9Cu1Mg Alloy Cast in Ceramic

• Autorzy: Matejka M. , Kuriš M. , Bolibruchova D. , Pastirčák R.

Identyfikatory

DOI

10.24425/afe.2020.131295

• Języki publikacji: EN

Abstrakty

EN

The article focuses on the analysis of the effect of Zr on the properties of the aluminium alloy AlSi9Cu1Mg. The effect of Zr was evaluated depending on the change in mechanical properties and heat resistance during a gradual addition of Zr with an increase of 0.05 wt. % Zr. Half of the cast experimental samples from each variant were heat treated by precipitation hardening T6 (hereinafter HT). The measured values in both states indicate an improvement of the mechanical properties, especially in the experimental variants with a content of Zr ≥ 0.20 wt. %. In the evaluation of Rm, the most significant improvement occurred in the experimental variant with an addition of Zr 0.25 wt. % after HT and E in the experimental variant with addition of Zr 0.20 wt. % after HT. Thus, a difference was found from the results of the authors defining the positive effect of Zr, in particular at 0.15 wt. %. When evaluating the microstructure of the AlSi9Cu1Mg alloy after Zr alloying, Zr phases are already eliminated with the addition of Zr 0.10 wt. %. Especially at higher levels of Zr ≥ 0.20 wt. %, long needle phases with slightly cleaved morphology are visible in the metal matrix. It can be stated that a negative manifestation of Zr alloying is expressed by an increase in gassing of experimental alloys, especially in variants with a content of Zr ≥ 0.15 wt. %. Experimental samples were cast into ceramic moulds. The development of an experimental alloy AlSi9Cu1Mg alloyed with Zr would allow the production of a more sophisticated material applicable to thin-walled Al castings capable of operating at higher temperature loads.

Słowa kluczowe

EN

solidification process; heat treatment; aluminium alloys; properties; zirconium; ceramic mould

PL

proces krzepnięcia; stop aluminium; wpływ cyrkonu; obróbka cieplna; forma ceramiczna

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2020
• Tom: Vol. 20, iss. 2
• Strony: 13--18
• Opis fizyczny: Bibliogr. 11 poz., fot., rys., tab.

Twórcy

autor

Matejka M.

• Department of Technological Engineering, University of Zilina, Zilina, Slovak Republic

autor

Kuriš M.

• Department of Technological Engineering, University of Zilina, Zilina, Slovak Republic

autor

Bolibruchova D.

• Department of Technological Engineering, University of Zilina, Zilina, Slovak Republic

autor

Pastirčák R.

• Department of Technological Engineering, University of Zilina, Zilina, Slovak Republic

Bibliografia

• [1] Vončina, M., Medved, J., Kores, S., Xie, P., Cziegler, A. & Schumacher, P. (2018). Effect of molybdenum and zirconium on aluminium casting alloys. Livarski Vestnik. 65(1), 36-48.
• [2] Medved, J. & Kores, M.V.S. (2018). Development of innovative Al-Si-Mn-Mg alloys with high mechanical properties, Light Metals 2018. The Minerals, Metals & Materials Society. 373-380. DOI 10.1007/978-3-319-72284-9_50.
• [3] Tsivoilas, D. & Robson, J. D. (2015). Heterogeneous Zr solute segregation and Al3Zr dispersoid distributions in Al-Cu-Li alloys. Acta Mater. 93, 73-86. DOI: 10.1016/j.actamat. 2015.03.057.
• [4] Mahmudi, R., Sepehrband, P. & Ghasemi, H.M., (2006). Improve properties of A319 aluminium casting alloy modified with Zr, Materials Letters. 60, 2606-2610. DOI: 10.1016/j.matlet.2006.01.046.
• [5] Sepehrband, P., Mahmudi, R. & Khomamizadeh, F., (2004). Effect of Zr addition on the aging behavior of A319 aluminium cast alloy, Scripta Materialia. 52, 253-257. DOI: 10.1016/j.scriptamat.2004.10.025.
• [6] Bolibruchová, D. Pastirčák, R. (2018). Foundry metallurgie of non-ferrous metals. Žilina: EDIS - ŽU UNIZA.
• [7] U. N. R. laboratory, (2016). The Al3Zr (DO23) structure. Retrieved February 17, 2016, from http:// aflowlib.duke.edu/users/egossett/lattice/struk/d0_23.html.
• [8] Kuchař, L., Drápala, J. (2006). Binary systems of aluminium - mixture and their importance for metallurgy. Ostrava: VŠB- TU Ostrava.
• [9] Hermandez-Sandoval, J., Samuel, A.M. & Vatierra, F.H., (2017). Thermal analysis for detection of Zr-rich phases in Al-Si-Cu-Mg 354-type alloys. International Journal of Metalcasting. 11(3), 428-439, DOI: 10.1007/s40962-016-0080-0.
• [10] Tillova, E. Chalupova, M. (2009). Structural analysis of Al-Si alloys. Žilina: EDIS-ŽU UNIZA.
• [11] Pastircak, R., Scury, J., Bruna, M. & Bolibruchova, D. (2017) Effect of technological parameters on the AlSi12 alloy microstructure during crystallization under pressure. Archives of Foundry Engineering.17(2), 75-78. ISSN 1897-3310.

Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020)